Java JSP Support

README.md

@@ -165,13 +165,19 @@ On Windows:
 You should now see something similar to:
 
     :::term
-    2011-08-18 15:52:24.066:INFO::jetty-7.4.5.v20110725
-    2011-08-18 15:52:24.142:INFO::started o.e.j.s.ServletContextHandler{/,null}
-    2011-08-18 15:52:24.168:INFO::Started SelectChannelConnector@0.0.0.0:5000 START
+    2012-01-26 23:16:56.678:INFO:oejs.Server:jetty-7.5.4.v20111024
+    2012-01-26 23:16:56.886:INFO:oejsh.ContextHandler:started o.e.j.w.WebAppContext{/,file:/.../src/main/webapp/},src/main/webapp
+    2012-01-26 23:16:56.939:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:5000 STARTING
 
 Open the app in your browser:  
 [http://localhost:5000](http://localhost:5000)
+
+    If you see this error "org.apache.jasper.JasperException: java.err.nojdk" on windows (You must have JAVA_HOME pointing to JDK PATH), try this:
 
+    $ set PATH=%JAVA_HOME%\bin;%PATH%
+    $ set PORT=5000
+    $ target\bin\webapp.bat
+
 
 ## Declare Process Types With Procfile
 

pom.xml

@@ -6,18 +6,30 @@
     <groupId>com.example</groupId>
     <version>1.0-SNAPSHOT</version>
     <artifactId>helloworld</artifactId>
+
     <dependencies>
+        <!-- Jetty WebApplication -->
         <dependency>
-            <groupId>org.eclipse.jetty</groupId>
-            <artifactId>jetty-servlet</artifactId>
-            <version>7.4.5.v20110725</version>
+            <groupId>org.eclipse.jetty.aggregate</groupId>
+            <artifactId>jetty-webapp</artifactId>
+            <version>7.5.4.v20111024</version>
         </dependency>
+
+        <!-- Eclise Compiler for JSP -->
         <dependency>
-            <groupId>javax.servlet</groupId>
-            <artifactId>servlet-api</artifactId>
-            <version>2.5</version>
+            <groupId>org.eclipse.jdt.core.compiler</groupId>
+            <artifactId>ecj</artifactId>
+            <version>3.7.1</version>
+        </dependency>
+
+        <!-- JSP Compiler -->        
+        <dependency>
+            <groupId>org.glassfish.web</groupId>
+            <artifactId>jsp-impl</artifactId>
+            <version>2.1.3-b10</version>
         </dependency>
     </dependencies>
+
     <build>
         <plugins>
             <plugin>

src/main/java/HelloWorld.java

@@ -1,24 +1,30 @@
 import java.io.IOException;
+
 import javax.servlet.ServletException;
-import javax.servlet.http.*;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
 import org.eclipse.jetty.server.Server;
-import org.eclipse.jetty.servlet.*;
+import org.eclipse.jetty.webapp.WebAppContext;
 
 public class HelloWorld extends HttpServlet {
 
     @Override
     protected void doGet(HttpServletRequest req, HttpServletResponse resp)
             throws ServletException, IOException {
-        resp.getWriter().print("Hello from Java!\n");
+        String name = req.getParameter("name");
+        req.setAttribute("name", name == null ? "JSP" : name);
+
+        // Forward to JSP
+        req.getRequestDispatcher("hello.jsp").forward(req, resp);
     }
 
     public static void main(String[] args) throws Exception{
         Server server = new Server(Integer.valueOf(System.getenv("PORT")));
-        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
-        context.setContextPath("/");
-        server.setHandler(context);
-        context.addServlet(new ServletHolder(new HelloWorld()),"/*");
+        server.setHandler(new WebAppContext("src/main/webapp", "/"));
         server.start();
         server.join();   
     }
+
 }

src/main/webapp/WEB-INF/web.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
+
+	<display-name>HelloWorld Application</display-name>
+
+	<servlet>
+		<servlet-name>HelloWorldServlet</servlet-name>
+		<servlet-class>HelloWorld</servlet-class>
+	</servlet>
+
+	<servlet-mapping>
+		<servlet-name>HelloWorldServlet</servlet-name>
+		<url-pattern>/</url-pattern>
+	</servlet-mapping>
+
+</web-app>

src/main/webapp/hello.jsp

@@ -0,0 +1 @@
+Hello <%=request.getAttribute("name")%>